Hi Matt,
Glad to see a new person posting.
As far as your question, the Salutations were printed from 1939-46, a number of the cards were only printed for a year or two while others were printed every year and a few were even printed with the 1947-66 exhibits. The Feller pitching was printed into the late 1950's and the Ted Williams without number into the 1960's.
The Earl Averill was one of those only printed one year, along with the Gehrig, and a few others, they are extreemly hard to find much less in nice condition. I have been working on the set for years and i still need 6 to complete. I do have the Averill thou.
I hope that helps,
Scott
